class_docstr: Classifier based on BERT implementation.
docstr: Determine the dictionary class.
docstr_tok: ["Determine","the","dictionary","class","."]
code: def dictionary_class():
      """
      Determine the dictionary class.
      """
      return BertDictionaryAgent
  
imports: import os
  from collections import deque
  from typing import Optional
  import torch
  from parlai.agents.bert_ranker.bert_dictionary import BertDictionaryAgent
  from parlai.agents.bert_ranker.helpers import BertWrapper, MODEL_PATH
  from parlai.core.opt import Opt
  from parlai.core.params import ParlaiParser
  from parlai.core.torch_agent import History
  from parlai.core.torch_classifier_agent import TorchClassifierAgent
  from parlai.utils.io import PathManager
  from parlai.utils.misc import warn_once
  from parlai.zoo.bert.build import download
label_desc: Use image node_id 4 for calling the BertClassifierAgent obj's underlying member method code with example usage: obj.dictionary_class() and returns: BertDictionaryAgent